Typewriting machine



April 7, 1925.

w. o. BRYANT TYPEWRITING MACHINE /nrm/ar: mw W Filed Oct. 27, 1921 Patented Apr. 7, 1925.

entran sraras Parsnr orales. y,

'WILLlAlx/I O. BRYANT, OF LOS ANGELES, GALFORNlA, ASSIGNGR T0 UNDERWOGD A GRPRIATION 0F DELAVARE.

Application. ined october 27, 1921.v semi No. 510,712.

To all io/mm it may @office/M1,

Be it known that I, lWILLIAM O. BRYANT, a. citizen ot the United States, residing in llios Angeles, in the county of Los Angeles and State of; California, have invented certain new and useful Improvements in Typewriting hilachinos, oli' which the following is a speciiication.

This invention relates tortypewriting macl'iincs, and more particularly to means for rapidly and accurately bringing predeter mined portions ol inserted work-sheets or elements to the printing line.

The main object of the invention is to pro vide simple and elt'eetive work-positioning and advancing means simple in construction, economical to manufacture, readily assembled and taken apart, easily attached to n'iaehines oll standard manufacture, and capable of effecting, within a Wide range, linespace movements of different extents. ln carrying out the invention, provision may be made et improved platensrotating means ot the type sometimes known as platen-sweep mechanism. Such means may comprise a bracket on Which the other parts are supported, so that, `when the bracket, with the other parts attached, is secured to the platen-traine and a driving connection eli'ected between the adjacent end of the platen-axle and a rotatable member forming part of the platensrotating means, actuation oit the platen by means ot' the improved {daten-rotating means may be effected.

The rotatable member connected with the platen-axle may consist of a sleeve to receive the ond of the platen-axle, a pinion'separated from the sleeve by a bearing portion and a lingeravheel outside of said pinion, and may be rotated by means ot a gear meshing with said pinion and rotatably sup ported Aabove the platen-axle by .means ot a member extending outwardly from the platen-trame parallel to said axle. The connection between said last-mentioned'member and the rotatable member may be eiftectcd by a plate or member mounted on the gear-carrying member and having an opening in which the bearing portion of the rotatable member is journaled. The gear may be actuated by a handle mounted to turn above the same axis and having a pawl to cooperate with the gear. Suitable stopping' means may be provided to limit the forward movement of the handle.

In order to relieve the platen-rotating attachment from the strain exerted thereon during the operation ot the handle and also at the time When the latter is checked by the stopping means, the outer end of the gear-supporting element may be supported at its outer end by a member or bar lined on the carriage and having an opening to receive the gear-carrying member. The opening referred to may be in the form of a slot vto permit case-shift movements of the platen. The slotted member may also be provided with a pawl-lifter, so that, when the operating handle is returned to .its normal position, as, for example, by a spring, the pawl will be lifted out of engagement with, the gear, so that the platen-rotating means, when not in use, will not interfere with the turning of tle platen by other means.

A 'feature of the `invention is the provision ot' means for quickly locating ledgersheets for writing. At each insertion of a ledgerf sheet, a single item or only a few items are entered, and the sheet must be inserted againl and again at'dillierent times, eac-h time be ing located in a different Writing position in the machine. In accordancefwith this teature, provision may also be made ot an aligning table above the platen, so that, when the usual feed-rolls are cast off, a work-sheet may be passed over the rear paper table and around to the front ot' the platen, where it may be alignedv and exactly positioned vby the aligning table. The handle of the platen-rotating means maythen be pulled forwardly and the work-sheet or element advanced until the desired Writing-line portion thereof is advanced to the Writing line indicated bythe upper aligning edge of the usual wing-scales. `Typing on thev ledgerfsheet may then be effected. y'lfhe platen-rotating means may be arranged to advance the platen through distances which are equal to whole numbers of line-spaces, only.

It will be seen that the aligning table and the platen-sweep mechanism form, in combination, a two-step collating device; that is, a device for locating a ledger-sheet by a twostep operation in various mechanically predetermined positions at successive insertions, to cause the lines typed at such insertions of the sheet to be equally spaced and parallel'to one another. The aligning-table e1- 'l'ects the first step of the collating operation by gaging the sheet to locate it in a definite unitormposition at eaclrinsertion, with reference to the printing point, and with its leading edge parallel to thelineot writing. The platen-sweep mechanism then eliects the second step ofthe collating operation (a), by advancing the platen to the necessary extent, and* (lf). locating the sheet in exact position to' begin typing thereornso thatfine adjustment ofthe sheet by the'aid ofthe eyeis avoided. ln' other words, the original (raging otthe slieet'now has a postponede'tiijcacy, soV that: the sheet is caused to be advanced from its vgaged'positionexactly toene' ot" thev desired typing positions. The platenhasa ratchet-wheel; and a spring-detentlact'stthereon-to secure exact positioning of the platen at the end othisse'condcollatingl step.

Othery teaturesandj advantages will hereinafter appear.

ln theiacco'mpanying drawings,

Figure 1 is aside elevation, partly in sec-- tion, showinga work-sheet inserted between the platen andthe cast-ott feed-roll'sand positioned by an aligning table above the platen.

Figure 2 isa diagrammatic side elevation, showing the feed-rolls in eli'ective position l against tlieplaten and the work-sheet advanced by a= forward? movementA ofb the handle of the platen-rotating-means.

Figure 3 is a plan View, showing the invention appliedto the right-hand-end ofthe platen-trame;l

Figure e isa vertical section, viewed from thefront of the'mechanism` shown in Figure 3.

A platen 1l is supportedby means of an axle 1Q journaled inthe ends 18 of a platenframe 14. The platen-frame 1st is mounted in' a carriage l5 comprising a transverse bar 16, against which the rear paper-guiding portion of the plateneti-amev rests when the platen isin lower-ease"position. Fixed on the lett-hand end of' the platen-axle 12 is a ratchet-wheel 17, which may be actuated by the usual line-spacing. mechanism, including a pawl 18, the'platen` being held in any position to whichV it has been turne'd by means ot' a detent member 19, having' a rotatable roll 20 at its end to engage in the notches between the teeth of the ratchet'- wheel 17.

ln some kinds oi" w rh, it is desirable to rotate the platen at a single operation through a much greater angle' than is possible by means ot the nsual line-spacing mechanism. To this end., a novel form of platen-rotating means or"A the type sometimes known as platen-sweep mecnanisni is provided at the right-hand end oli the platenlralne. Secured to the vertical flange 2l oit the usual cover-plate on the right-hand end ci the platen-traine by means ot suitable means, such as bolts is a breitet Z-l having at its npl er enda sleeve 25, in which is secured, by means of a screw 2G, the inner end of a pin 2 parallel to the platen-axle l2. Near its outer end the pin 2i" is provided with a holding collar 2S and b aring collar 29 outside of the holding collar Vililrounted on the pin 2'? is a spacinf"` s eeve SO ha ing a collar so spaced trom the'end o the sleeve to permit a 32 to be received between the collar 3l ol theV sleeve 30 and the holding collar of `the pin "2T ruhen the parts are assembled. A handle is loosely mounted" on the bearing collar 2) and held in position thereon by a sleeve r-l secured to the pin 2l' by any suitable means, such a pin' rllhe'sleeve' l-i is provided with a lange 36 at its inner end integral t with and with a removable flange c its outer end so as to receive a coil sprint 38, one end of which engages the liront etree oit handle 33 and the'other end et wnicn is fixedly. connected with the sleeve I'll. rlhe spring 38 tends to swing the handle to il l rear, and the movement ofthe handle in thisdirection is limited by suitable means to ce described hereinafter.

rlfhegear 3Q, meshes with a pini-on which is secured by any sy able means, snch as a pinsel), on the reduced end eil ol' a rotat e member l2 comprising a .ies-,ring portion i3 and a sleeve elf-l in which the outer end ot the platen-axle is secured by means or a screw 45. il linger-wheel il@ may be secured onthe reduced end portion -ll outside ot the pinion 39 by any suitable means, sach as a pin Il?. To insurev proper ope 'ative connection between the gear 32 and the pinion Si), provision is made ot a member or bracket 1- 8 mounted on the sleeve 30 and provided with an opening in which the bearing portion -l-S of the rotatable member a2 journaled.

ltwill be evident that the ii'ilaten-rotaling mechanism Iinst described may readily be applied to the right-hand end or the platenraine shown. rlhe gear 32 may be placed on theouter end oit the sleeve 30 and the pin 2T passed tlnough said sleeve, so that the holding collar 2S will engage the outer end of the sleeve and hold the gear in position against thecoliar the space between the holdingl collar and the collar "l sui'hcient to permit movement independently of the sleeve. 'l may be introduced into the un1 member 48, into the lower end et which the rotatable member has been iii-1L l so that the bearing portion di) fits therein.

the pinion Si) then being ecuret on duced end 41. The sleeve fl-l may then be secured to the platen-axle 12 by means of the screw 45, and the inner end et' the pin 27 to which the sleeve 30 is lixedly secured may be inserted in the sleeve and secured `by the screw 2G.A The handle 33 and other parts may then be assembled on the outer end of the pin 2'? and the finger-Wheel At6 may be secured on the reduced end l1 et the rotatable member 4t2, Obviously, the manner in which these parts are assembled may be varied. The platen-axle 12 is journaled in collars 13 projectingI from the ends 13 oi the platen-trame 14, and provision is made ot a spacing sleeve 13b on axle 12 to prevent longitudinal movement ot' the axle relative to the platen-frame. The detent member 19 and ratchet-wheel l? cause the platen to come to rest in deliniteline-space positions, regardless oit' the means by which the platen is advanced.

Provision may be made i'ior relieving` the platen-frame and the` platen-rotating attachment from the strain to Which they are subjected when the platen-rotating handle 33 is swung` ttor fardly. To this end, the carriage 15 is provided with a usual lingerguard 49, which extends to the right from the front rail ot the carriage, and is provided at the rear with brackets 51 carrying a transverse bar 52, at the ends ot which are vertical brackets 53.

The downturned end 54 of a bar is connected with a vertical flange 5S of the linger-guard -fl-Q by any suitable means, suoli as screws 57, and at its rear end the bar is supported on a bolt or bar 59 extending between the brackets The bar is provided with an open slot 60 to receive the boltV 59, and it will be evident that, upon releasing the screws 57, the bar -55 may readily be removed from the bolt 59. The bar 55 is provided with a slot 61 in proper position to receive the outer end ol the pin 27, which normally rests in the lower end ot the slot. The slotted construction of the bar 55 enables case-shift movement or" the platen-iframe by means of a shift-frame 62, mounted to swing1 about the axis of a rod G3 and provided at its forward end with a rod 6st, on which rests a roll 65 rotatably mounted on the lower part o't'the platentrame 1st. Preferably, the slot is closed, as herein disclosed, so that no displacement of the pin 27 to the front or rear or out ot the slot may be etlected when the traine is in raised position.

A bracket 66 is secured to the bar 55 at the rear of the slot 6.1 and adjacent the periphery of the gear 32, by means o'l screw 67. Preferably, the bracket 66 is of sheetmetal, shaped to form a stop 68 for the handle 83 anda Finger or paWl-litter 69 Which, When handle 33 is moved to the rear by the spring 38, engages a pawl 70 and swings it about its pivot 'T1 to Withdrau7 it Jfrom the 82 against the action of a leatspring 72 secured to the handle 33 by means ot' a screvv 73.

Preferably, in practice, the usual feedrolls -l are cast oii and a Work-sheet 75 is inserted at the rear and positioned at the front ot the platen by means oi' an aligning table or plate 7G havingl a flange 77 at its upper edge. rThe -feed-rolls Y-l are then restored to ettective position and the handle 33 drawn forward, the Work-sheet 75 being advanced, as indicated in Figure 2, until the desired portion of the Work-sheet is brought to the writingi line immediately above the aligningedges ot Wing-scales 79 carried by a type-bar segment SO. The sheets, after alignment on said table 7G, should not be advanced be fond the last Writing line by handle 33. tension oil member 48, may, therefore, be provided, and the handle in its forward movement Will be checked by engagement ot a pin thereon with the stop 8st to prevent turningI oli the sheets out of the machine at the locating,` operation. rllyping may then be etl'ected by means oit types 81 on typebars 82, line-spacing being` effected, it desired, by means ot the usual line-spacingv mechanism at the leit end ot' the plateniframe. Upon release of handle 33, it will be swung` to the rear by springl 38 and the paul 70 moved to inetlective position. The handle 33 may thereafter be used for running` the sheet 5 out of the machine after the typing` has been completed.

ln using the invention, the ledger-sheets are inserted one after another in the machine, and each one is collated by the twostep collating means, comprising)- the aligning' table, the platen-sweep mechanism, and the ratchet-Wheel and detent. With Ythe feed-rolls thrown ott, the lirst collating` step is eliected by inserting` a sheet around the platen from the rear and gaging it in a delinite exact and uniform position with reference to the printing point or line, by means of the leading-edge gage on the aligningl table. The feed-rolls are then restored, and the second collating step is performed by operatingthe handle 33 to advance the sheet to typing position.' rlhe platen-ratchet 1T and the detent 19 acting thereon locatefthe sheet in exact typing` position at the end of the platen-sweep operation. By thus imparting a collating sweep to the platen, the t@aged condition oit the sheet, both with respect to its alignment and its line-space position as originally determined by the leading-edge gage ot the paper-table, is automatically preserved and taken advantageot to cause the new line or" Writing to be exactly a pre-measured line-space below the last line typed on the sheet at the next previous insertion thereof into the machine.

n stop Se, formed as an exf# tl (l Variations may be resorted to Within the scope of thel invention, and portions ot the improvements may be used Without others.

lilaving thus described my invention, l clam:

l. In atypewriting machine, in combination, a plateina platen-axle, a platen-frame in which said axle is ournaled, a car lage in which said platen-traine is mounted, caseshitt mechanism Ator shitting said platen- 'trame, a pinion on one end et iid platenaxle to rotate the same, a gear-supporting member extendingl outwardly from the platen-frame parallel to said axle, a gear on said member' to mesh with said pinion, means ior actuatingl said gear, and a guide hastened on said carriage and having a slot to receive the cuter end of said gearsupporting member so as to guide it during case-shift movements.

Q. in a typewriting machine, in combination, a platen, a platcinaxle, a platen* Alrame in which sai axle isjournaled, a carriage in whialieaid platennrai ie is'mounted, ease shitt mechanism Ylor shifting ,said platensframe, a pinion on one endI ot said platen-axle to rotate the same, a gear-supporting member extending outwardly from the platen-frame parallel to said axle,

gear on said member to mesh `with said pinion, an operating arm loosely mounted on said member, a pawl on said arm to `actuate said gear, and a guide fastened on said carriage and having a slot to receive the outer end ot' said gear-supporting member so as to guide it during case-sl att movements.

3. ln a typewriting machine, in combination, a platen, a platen-axle, a platen-frame in Wnicli said axle isjournaled, a carriage in which said platen-trame is case-shift mechanism for shitting platen-trame, platen-axle to rotate the same, a gear-supsaid porting member extending outwardly from the platen-'trame parallel to: said axle,.a gear on said member to mesh with said pinion, an operzrting` aim loosely mounted on said gearsupporting member, a pawl on said arm to actuate said gear, a guide member fastened on said carriage and having a slot to re ceire the outer end ot said gear-supporting member so as to guide it during case-shift movement, and a pand-lifter mounted on said guide member to render the pawl incliective when said operating arm isin normal position.

l. In a typewriting machine, in combination, a platen, a platen-axle, a. platen-trame in which said axle is journaled, a carriage in which said frame is-mounted, oase-shift mechanism for shil ing said platen-trame, a platen-rotating device comprising a gear nounted',l

a. pinion on one end ot saidv and an operating handle mounted on an axis parallel to the platen-axle, and means attached to said carriage toj guide said'platenrotating device during ase-shift movements.'

5. ln atypewriting machine, in combination, a platen, a carriage havinga lingerguarchxvitha verticaltlange, extending 'trom the right end of the platen-frame', platenrc-tating'meanscomprising apivot above the platen-aXle and parallel thereto, and an operating handle' pivote'dy thereon, and means to relie-ve the platen-rotating means 'from strain comprising a bar secured to the ver ical 'flange ot' the finger-guard and supported at its other end'on the rear or' said carriage.

(l. ln a typewriting machine, in combination, a platen, a carriage having a fingerguaid, with ayertiealftlange, .extending from the right end et the platen-frame, platenrotating 'means comprising a'pivot above the platen-axle and parallel thereto, and an operatingi handle pivoted thereon, and sto relieve the platen-rotating means from strain comlnisinga bar secured to the vertical frange ot the vfinger-guard and supported, on the rear of said carriage, by a rod extending through an open slot therein.

7. ln a typewriting machine, in combination, a platen, a platen-fiamma carriage in which said platen-'frame is shittably mounted, platen-rotating means on the plateniirame and shitt'able therewith, and means mounted on the carriage, independently o'i the platen-trame, tosupport said platenrotating means" against forward and rear ward pressure.

8. A platen-rotatingattachment to be secured to vone endet a. platen-'frame ot a ypewriter, comprising a bracket on which the other parts the attachment are supported, said bracket comprising a sleeve having its axis parallel to that of' the platen, a gear support having one end secured in said sleeve, a gear rotatably mounted on said gear support, rotatable member having a portion to receive the adjacent end ot the platen-axle and a pinion to mesh with said gear, a connecting bracket mounted on said gear support and: in Which said rotatable member is journaled, a handle loosely mounted on said gear.l support, a pawl on said handle to actuatesaid gear, a stop on said connecting bracket, and a projection on said handle to engage said stop and thereby check the 'forward movement or' said handle.

Witnesses J. D; JOHNSON, Geo. B, RICHARDS. 

